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Finding the Fourth Proportional to 448,969.80, 619,592.76 and 255,372.55

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Solution

The fourth proportional to 448,969.80, 619,592.76 and 255,372.55 is: 352,422.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,969.80 : 619,592.76 = 255,372.55 : x
  2. Step 2: Convert to fraction form
    448,969.80/619,592.76 = 255,372.55/x
  3. Step 3: Cross multiply
    448,969.80x = 619,592.76 × 255,372.55
  4. Step 4: Simplify right side
    448,969.80x = 158,226,981,533.76
  5. Step 5: Solve for x
    x = 158,226,981,533.76/448,969.80
  6. Step 6: Final answer
    x = 352,422.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.